Liquid crystal display and method for manufacturing the same

ABSTRACT

A liquid crystal display and a method for manufacturing the same capable of reducing a bezel are disclosed. The liquid crystal display includes a display panel including vertical lines, horizontal lines, and pixels and a driver integrated circuit (IC) supplying a data voltage and a gate pulse to the pixels through the vertical lines. The vertical lines include vertical data lines to which the data voltage is supplied, vertical gate lines to which the gate pulse is supplied, and vertical common voltage lines to which a common voltage is supplied. The horizontal lines include horizontal gate lines which are connected to the vertical gate lines and receive the gate pulse through the vertical gate lines.

This application claims the benefit of Korean Patent Application No.10-2012-0138187 filed on Nov. 30, 2012, the entire contents of which isincorporated herein by reference for all purposes as if fully set forthherein.

BACKGROUND OF THE INVENTION

1. Field of the Invention

Embodiments of the invention relate to a liquid crystal display and amethod for manufacturing the same capable of reducing a bezel size.

2. Discussion of the Related Art

A field of display devices rapidly changed from large-sized cathode raytubes (CRTs) to flat panel displays (FPDs) which have advantageouscharacteristics of thin profile and lightness in weight and are able toimplement the large-sized screen. Examples of the flat panel displaysinclude a liquid crystal display (LCD), a plasma display panel (PDP), anorganic light emitting diode (OLED) display, and an electrophoresisdisplay (EPD). Among the flat panel displays, the liquid crystal displaycontrols an electric field applied to liquid crystal molecules based ona data voltage to display an image. An active matrix liquid crystaldisplay has reduced its cost due to the development of a processtechnology and a driving technology and has improved its performance.Hence, the active matrix liquid crystal display has been most widelyused in almost all kinds of display devices from small-sized mobiledevices to large-sized televisions.

The manufactures of the liquid crystal displays have made variousattempts to achieve a narrow bezel design. The narrow bezel technologyminimizes a bezel size, in which an image is not displayed, at an edgeof a display panel, so as to relatively increase the size of a pixelarea, in which the image is displayed. In the narrow bezel technology,there is a limit to a reduction in the bezel size because of alimitation of fine process.

SUMMARY OF THE INVENTION

Embodiments of the invention provide a liquid crystal display and amethod for manufacturing the same capable of reducing a bezel size.

In one aspect, there is a liquid crystal display comprising a displaypanel including vertical lines, horizontal lines, and pixels and adriver integrated circuit (IC) supplying a data voltage and a gate pulseto the pixels through the vertical lines.

The vertical lines include vertical data lines to which the data voltageis supplied, vertical gate lines to which the gate pulse is supplied,and vertical common voltage lines to which a common voltage is supplied.The horizontal lines include horizontal gate lines which are connectedto the vertical gate lines and receive the gate pulse through thevertical gate lines.

In another aspect, there is a method for manufacturing a liquid crystaldisplay comprising forming vertical lines and horizontal lines crossingthe vertical lines on a substrate and forming a plurality of pixels onthe substrate to manufacture a display panel, and connecting a driverintegrated circuit (IC), which supplies a data voltage and a gate pulseto the pixels through the vertical lines, to the display panel.

In yet another aspect, there is a method for manufacturing a liquidcrystal display including a display panel including vertical lines,horizontal lines, and pixels and a driver integrated circuit (IC)supplying a data voltage and a gate pulse to the pixels through thevertical lines, the method comprising forming the horizontal lines usinggate metal patterns formed on a substrate of the display panel, forminga gate insulating layer on the substrate to cover the horizontal lines,stacking semiconductor patterns and source-drain metal patterns on thegate insulating layer to form the vertical lines, stacking a firstpassivation layer and an organic protection layer on the vertical linesand the gate insulating layer, forming a common electrode and a linkpattern of the pixels formed of a transparent conductive material on theorganic protection layer, forming a second passivation layer on thecommon electrode and the link pattern, and forming pixel electrodes ofthe pixels on the second passivation layer.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this specification, illustrate embodiments of the invention andtogether with the description serve to explain the principles of theinvention. In the drawings:

FIGS. 1 and 2 illustrate a liquid crystal display according to anexample embodiment of the invention;

FIG. 3 is an enlarged view of a chip-on film (COF) shown in FIG. 2;

FIG. 4 partially illustrates a pixel array according to an exampleembodiment of the invention;

FIG. 5 illustrates a connection example between vertical gate lines andhorizontal gate lines;

FIG. 6 illustrates an example of a data voltage and a gate pulse appliedto a pixel array shown in FIG. 4;

FIG. 7 is a plane view showing an example of a structure of a thin filmtransistor (TFT) array of a fringe field switching (FFS) mode in aliquid crystal display according to an example embodiment of theinvention;

FIG. 8 is a cross-sectional view taken along lines I-I, II-II, andIII-III of FIG. 7;

FIGS. 9A to 9G are cross-sectional views sequentially illustrating eachof stages in a method for manufacturing a TFT array of a liquid crystaldisplay according to an example embodiment of the invention;

FIG. 10 illustrates an example of widening a line width of a blackmatrix when a vertical data line and a vertical gate line are positionedadjacent to each other; and

FIG. 11 illustrates an example of lines formed in a bezel in a liquidcrystal display according to an example embodiment of the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Reference will now be made in detail to embodiments of the invention,examples of which are illustrated in the accompanying drawings. Whereverpossible, the same reference numbers will be used throughout thedrawings to refer to the same or like parts. It will be paid attentionthat detailed description of known arts will be omitted if it isdetermined that the arts can mislead the embodiments of the invention.

Names of components used in the following description are selected inconsideration of ease of specification preparation, and thus may bedifferent from names of components used in practical products.

As shown in FIGS. 1 to 3, a liquid crystal display according to anexample embodiment of the invention includes a display panel PNL, adriver integrated circuit (IC) DIC (or 10), a timing controller TCON (or12), etc.

The liquid crystal display according to the embodiment of the inventionmay be implemented in all of know liquid crystal modes including atwisted nematic (TN) mode, a vertical alignment (VA) mode, an in-planeswitching (IPS) mode, a fringe field switching (FFS) mode, etc. Further,the liquid crystal display according to the embodiment of the inventionmay be implemented as any type liquid crystal display including atransmissive liquid crystal display, a transflective liquid crystaldisplay, and a reflective liquid crystal display.

The display panel PNL includes an upper substrate and a lower substratepositioned on opposite sides of liquid crystal cells Clc. Video data ofthe display panel PNL is displayed in an area of a pixel array includingpixels arranged in a matrix form. The pixel array includes a thin filmtransistor (TFT) array formed on the lower substrate of the displaypanel PNL and a color filter array formed on the upper substrate of thedisplay panel PNL. The TFT array includes vertical lines and horizontallines. The vertical lines are formed along a vertical direction (i.e., ay-axis direction of FIG. 1) of the display panel PNL. The horizontallines are formed along a horizontal direction (i.e., an x-axis directionof FIG. 1) of the display panel PNL and cross the vertical lines atright angles. The vertical lines include vertical data lines DL,vertical common voltage lines COML, and vertical gate lines VGL. Thevertical common voltage lines COML receive a common voltage Vcom from apower supply circuit (not shown). The horizontal lines includehorizontal gate lines GL receiving a gate pulse through the verticalgate lines VGL. The horizontal gate lines GL are respectively connectedto the vertical gate lines VGL and receive the gate pulse through thevertical gate lines VGL.

A thin film transistor (TFT) is formed at each of crossings between thevertical data lines DL and the horizontal gate lines GL of the TFTarray. The TFT supplies a data voltage from the vertical data line DL toa pixel electrode 1 of the liquid crystal cell Clc in response to thegate pulse from the horizontal gate line GL. Each of the liquid crystalcells Clc is driven by a voltage difference between the pixel electrode1 charged to the data voltage through the TFT and a common electrode 2,to which the common voltage Vcom is applied. The common voltage Vcom isapplied to the common electrodes (denoted by ‘COM’ in FIGS. 8 and 9) ofall the pixels through the vertical common voltage lines COML assignedto some of the vertical lines. A storage capacitor Cst is connected toeach of the liquid crystal cells Clc and uniformly holds voltage of theliquid crystal cell Clc during one frame period. The color filter arrayincludes color filters and black matrixes. Polarizing plates arerespectively attached to the upper and lower substrates of the displaypanel PNL. Alignment layers for setting a pre-tilt angle of liquidcrystals are respectively formed on the upper and lower substrates ofthe display panel PNL.

The driver IC 10 includes a plurality of source driver ICs SIC and aplurality of gate driver ICs GIC. As shown in FIG. 3, the source driverICs SIC and the gate driver ICs GIC are mounted on a flexible printedcircuit board (FPCB), for example, a chip-on film (COF). Both the sourcedriver ICs SIC and the gate driver ICs GIC are mounted on one COF. Aninput terminal of the COF is bonded to a printed circuit board (PCB),and an output terminal of the COF is bonded to the lower substrate ofthe display panel PNL. The COF includes an insulating layer betweenlines (denoted by dotted lines in FIG. 3) connected to the source driverICs SIC and lines (denoted by solid lines in FIG. 3) connected to thegate driver ICs GIC, thereby electrically separating the lines of thesource driver ICs SIC and the lines of the gate driver ICs GIC from eachother.

Each of the source driver ICs SIC samples digital video data of an inputimage and then latches the digital video data under the control of thetiming controller 12, thereby converting the digital video data intoparallel data. The source driver IC SIC converts the digital video datainto analog gamma compensation voltages using an analog-to-digitalconverter (ADC) under the control of the timing controller 12 togenerate the data voltage. The source driver IC SIC then supplies thedata voltage to the vertical data line DL. Each of the gate driver ICsGIC sequentially supplies the gate pulse (or scan pulse) synchronizedwith the data voltage to the vertical gate lines VGL under the controlof the timing controller 12.

All of the driver ICs DIC are formed on the COF connected to the upperside of the display panel PNL, and the gate pulse is applied to thehorizontal gate lines GL through the vertical gate lines VGL. Thus, thegate driver ICs GIC do not have to be bonded to or embedded in a leftedge and a right edge of the display panel PNL. Further, routing linesfor connecting the horizontal gate lines GL and the gate driver ICs GICare not formed at the left edge and the right edge of the display panelPNL. As a result, a thickness of a bezel BZ at the left and right edgesof the display panel PNL and a thickness of a bezel BZ at a lower edgeof the display panel PNL may be minimized.

The timing controller 12 transmits the digital video data of the inputimage received from a host system 14 (or SYSTEM) to the source driverICs SIC. The timing controller 12 receives timing signals, such as avertical sync signal Vsync, a horizontal sync signal Hsync, a dataenable signal DE and a main clock CLK, from the host system 14. Thetiming signals are synchronized with the digital video data of the inputimage. The timing controller 12 generates a source timing control signalfor controlling operation timing of the source driver ICs SIC and a gatetiming control signal for controlling operation timing of the gatedriver ICs GIC using the timing signals Vsync, Hsync, DE and CLK.

The host system 14 may be implemented as one of a television system, aset-top box, a navigation system, a DVD player, a Blue-ray player, apersonal computer (PC), a home theater system, and a phone system. Thehost system 14 converts the digital video data of the input image into aformat suitable for the display panel PNL. The host system 14 transmitsthe digital video data of the input image and the timing signals Vsync,Hsync, DE and CLK to the timing controller 12.

When the pixel array is configured as shown in FIG. 4, the data voltage,the common voltage, and the gate pulse may be supplied to m pixelsarranged on one line of the display panel PNL through only m verticallines, where m is a positive integer equal to or greater than 2. Thus,the embodiment of the invention may implement a resolution ‘m (thenumber of horizontal pixels)*n/2 (the number of vertical pixels)’ of thepixel array having the structure shown in FIG. 4 when the m verticallines and n horizontal lines are formed, where n is a positive integerequal to or greater than 2.

FIG. 4 partially illustrates the pixel array according to the embodimentof the invention. FIG. 5 illustrates a connection example between thevertical gate lines and the horizontal gate lines. FIG. 6 is a waveformdiagram illustrating an example of the data voltage and the gate pulseapplied to the pixel array shown in FIG. 4. In FIGS. 4 to 6, “D1 to D5”denote the vertical data lines, “VG1 to VGn” denote the vertical gatelines, “COML” denotes the vertical common voltage line, “G1 to Gn”denote the horizontal gate lines, “T1 to T16” denote the TFTs, and “PIX1to PIX16” denote the pixel electrodes.

As shown in FIGS. 4 to 6, only one vertical line exists between thepixels positioned adjacent to each other in the horizontal direction.For example, only the first vertical gate line VG1 is positioned betweenthe horizontally adjacent first and second pixel electrodes PIX1 andPIX2. Further, only the second vertical data line D2 is positionedbetween the horizontally adjacent second and third pixel electrodes PIX2and PIX3, and only the third vertical gate line VG3 is positionedbetween the horizontally adjacent third and fourth pixel electrodes PIX3and PIX4. Such a method for arranging the vertical lines may reduce awidth of a black matrix formed between the pixels positioned adjacent toeach other in the horizontal direction. On the other hand, as shown inFIG. 10, there is a method for disposing the vertical data line and thevertical gate line in a boundary between the pixels positioned adjacentto each other in the horizontal direction. However, the method increasesa width W of a black matrix, thereby reducing an aperture ratio of thepixels.

The embodiment of the invention causes the data voltage of the samepolarity to be output to the vertical data lines during one frame periodusing the pixel array having the structure shown in FIG. 4, therebyreducing power consumption and a heat generation amount of the sourcedriver ICs SIC and achieving dot inversion in the pixel array. Hence,the image quality of the liquid crystal display according to theembodiment of the invention is improved. The embodiment of the inventionmay reduce the number of vertical data lines and additionally includethe vertical gate lines and the vertical common voltage lines withoutincreasing the number of vertical lines using the pixel array having thestructure shown in FIG. 4. Thus, the embodiment of the invention maysupply the data voltage, the common voltage, and the gate pulse to the mpixels arranged on one horizontal line of the display panel PNL throughonly the m vertical lines. The embodiment of the invention may implementthe resolution ‘m (the number of horizontal pixels)*n/2 (the number ofvertical pixels)’ of the pixel array having the structure shown in FIG.4.

For example, when the resolution of the pixel array is ‘5760×1080’, thenumber of vertical data lines is 2880, a sum of the number of verticalgate lines and the number of horizontal gate lines is 2160 (=1080×2),and the number of vertical common voltage lines is 720 when the pixelarray having the structure shown in FIG. 4 is used. One vertical commonvoltage line is disposed every eight pixels arranged on the samehorizontal line. Thus, when the resolution of the pixel array is‘5760×1080’, a sum (i.e., the total number of vertical lines) of thenumber of vertical data lines, the number of vertical gate lines, andthe number of vertical common voltage lines is 5760. In a pixel arrayhaving a general structure, when a resolution of the general pixel arrayis ‘5760×1080’, the number of necessary vertical data lines is 5700.

As shown in FIGS. 4 and 5, the positive data voltage is supplied to theodd-numbered vertical data lines D1, D3, and D5 of the display panel PNLduring an Nth frame period, where N is a positive integer. The firstvertical data line D1 positioned at a left end of the display panel PNLand the vertical data line Dm positioned at a right end of the displaypanel PNL receive the data voltage through the same output channel ofthe source driver IC SIC and receive the data voltage in each horizontalperiod in the same manner as the other vertical data lines D2 to Dm-1.For example, the first vertical data line D1 at the left end and thevertical data line Dm at the right end are connected to each other andmay be connected to a first output channel of the first source driver ICSIC. Red and green data voltages, to which red and green pixels R and Gpositioned at left ends of the odd-numbered horizontal lines of thedisplay panel PNL will be charged, are supplied to the vertical datalines positioned at the left ends through the first output channel ofthe first source driver IC SIC. Subsequently, during a next horizontalperiod, green and blue data voltages, to which green and blue pixels Gand B positioned at right ends of the odd-numbered horizontal lines ofthe display panel PNL will be charged, are supplied to the vertical datalines positioned at the right ends through the first output channel ofthe first source driver IC SIC.

The negative data voltage is supplied to the even-numbered vertical datalines D2 and D4 of the display panel PNL during the Nth frame period.The polarities of the data voltages applied to the vertical data linesD1 to D5 maintain the same polarity during the Nth frame period, andthen are inverted in an (N+1)th frame period. Thus, because the datavoltages applied to the vertical data lines D1 to D5 maintain the samepolarity during one frame period, the current of the source driver ICsSIC is reduced. Hence, the power consumption and the heat generationamount of the source driver ICs SIC are greatly reduced.

The first and second pixels, which are horizontally adjacent to eachother on opposite sides of the first vertical gate line VG1 on a firsthorizontal line of the display panel PNL, are successively charged tothe data voltage of a first polarity supplied through the first verticaldata line D 1. More specifically, the first pixel is charged to the datavoltage of the first polarity through the first TFT T1, and then thesecond pixel is charged to the data voltage of the first polaritythrough the second TFT T2.

The first TFT T1 is formed at a crossing of the first vertical data lineD1 and the first horizontal gate line G1 and is connected to the firstpixel electrode PIX1. A gate electrode of the first TFT T1 is connectedto the first horizontal gate line G1, and a drain electrode of the firstTFT T1 is connected to the first vertical data line D1. A sourceelectrode of the first TFT T1 is connected to the first pixel electrodePIX1. The first TFT T1 is turned on in response to a first gate pulseapplied to its gate electrode through the first vertical gate line VG1and the first horizontal gate line G1. When the first TFT T1 is turnedon, the data voltage of the first polarity supplied through the firstvertical data line D1 is supplied to the first pixel electrode PIX1through the first TFT T1. The second TFT T2 is formed at a crossing ofthe first vertical data line D1 and the second horizontal gate line G2and is connected to the second pixel electrode PIX2. A gate electrode ofthe second TFT T2 is connected to the second horizontal gate line G2,and a drain electrode of the second TFT T2 is connected to the firstvertical data line D1. A source electrode of the second TFT T2 isconnected to the second pixel electrode PIX2 across the first verticalgate line VG1. The second TFT T2 is turned on in response to a secondgate pulse applied to its gate electrode through the second verticalgate line VG2 and the second horizontal gate line G2. When the secondTFT T2 is turned on, the data voltage of the first polarity suppliedthrough the first vertical data line D1 is supplied to the second pixelelectrode PIX2 through the second TFT T2.

The third and fourth pixels, which are horizontally adjacent to eachother on opposite sides of the third vertical gate line VG3 on the firsthorizontal line of the display panel PNL, are successively charged tothe data voltage of a second polarity supplied through the secondvertical data line D2. More specifically, the fourth pixel is charged tothe data voltage of the second polarity through the fourth TFT T4, andthen the third pixel is charged to the data voltage of the secondpolarity through the third TFT T3.

The third TFT T3 is formed at a crossing of the second vertical dataline D2 and the second horizontal gate line G2 and is connected to thethird pixel electrode PIX3. A gate electrode of the third TFT T3 isconnected to the second horizontal gate line G2, and a drain electrodeof the third TFT T3 is connected to the second vertical data line D2. Asource electrode of the third TFT T3 is connected to the third pixelelectrode PIX3. The third TFT T3 is turned on in response to the secondgate pulse applied to its gate electrode through the second verticalgate line VG2 and the second horizontal gate line G2. When the third TFTT3 is turned on, the data voltage of the second polarity suppliedthrough the second vertical data line D2 is supplied to the third pixelelectrode PIX3 through the third TFT T3. The fourth TFT T4 is formed ata crossing of the second vertical data line D2 and the first horizontalgate line G1 and is connected to the fourth pixel electrode PIX4. A gateelectrode of the fourth TFT T4 is connected to the first horizontal gateline G1, and a drain electrode of the fourth TFT T4 is connected to thesecond vertical data line D2. A source electrode of the fourth TFT T4 isconnected to the fourth pixel electrode PIX4 across the third verticalgate line VG3. The fourth TFT T4 is turned on in response to the firstgate pulse applied to its gate electrode through the first vertical gateline VG1 and the first horizontal gate line G1. When the fourth TFT T4is turned on, the data voltage of the second polarity supplied throughthe second vertical data line D2 is supplied to the fourth pixelelectrode PIX4 through the fourth TFT T4.

The fifth and sixth pixels, which are horizontally adjacent to eachother on opposite sides of the fifth vertical gate line VG5 on the firsthorizontal line of the display panel PNL, are successively charged tothe data voltage of the first polarity supplied through the thirdvertical data line D3. More specifically, the sixth pixel is charged tothe data voltage of the first polarity through the sixth TFT T6, andthen the fifth pixel is charged to the data voltage of the firstpolarity through the fifth TFT T5.

The fifth TFT T5 is formed at a crossing of the third vertical data lineD3 and the second horizontal gate line G2 and is connected to the fifthpixel electrode PIX5. A gate electrode of the fifth TFT T5 is connectedto the second horizontal gate line G2, and a drain electrode of thefifth TFT T5 is connected to the third vertical data line D3. A sourceelectrode of the fifth TFT T5 is connected to the fifth pixel electrodePIX5. The fifth TFT T5 is turned on in response to the second gate pulseapplied to its gate electrode through the second vertical gate line VG2and the second horizontal gate line G2. When the fifth TFT T5 is turnedon, the data voltage of the first polarity supplied through the thirdvertical data line D3 is supplied to the fifth pixel electrode PIX5through the fifth TFT T5. The sixth TFT T6 is formed at a crossing ofthe third vertical data line D3 and the first horizontal gate line G1and is connected to the sixth pixel electrode PIX6. A gate electrode ofthe sixth TFT T6 is connected to the first horizontal gate line G1, anda drain electrode of the sixth TFT T6 is connected to the third verticaldata line D3. A source electrode of the sixth TFT T6 is connected to thesixth pixel electrode PIX6 across the fifth vertical gate line VG5. Thesixth TFT T6 is turned on in response to the first gate pulse applied toits gate electrode through the first vertical gate line VG1 and thefirst horizontal gate line G1. When the sixth TFT T6 is turned on, thedata voltage of the first polarity supplied through the third verticaldata line D3 is supplied to the sixth pixel electrode PIX6 through thesixth TFT T6.

The seventh and eighth pixels, which are horizontally adjacent to eachother on opposite sides of the first vertical common voltage line COML1on the first horizontal line of the display panel PNL, are successivelycharged to the data voltage of the second polarity supplied through thefourth vertical data line D4. More specifically, the seventh pixel ischarged to the data voltage of the second polarity through the seventhTFT T7, and then the eighth pixel is charged to the data voltage of thesecond polarity through the eighth TFT T8.

The seventh TFT T7 is formed at a crossing of the fourth vertical dataline D4 and the first horizontal gate line G1 and is connected to theseventh pixel electrode PIX7. A gate electrode of the seventh TFT T7 isconnected to the first horizontal gate line G1, and a drain electrode ofthe seventh TFT T7 is connected to the fourth vertical data line D4. Asource electrode of the seventh TFT T7 is connected to the seventh pixelelectrode PIX7. The seventh TFT T7 is turned on in response to the firstgate pulse applied to its gate electrode through the first vertical gateline VG1 and the first horizontal gate line G1. When the seventh TFT T7is turned on, the data voltage of the second polarity supplied throughthe fourth vertical data line D4 is supplied to the seventh pixelelectrode PIX7 through the seventh TFT T7. The eighth TFT T8 is formedat a crossing of the fourth vertical data line D4 and the secondhorizontal gate line G2 and is connected to the eighth pixel electrodePIX8. A gate electrode of the eighth TFT T8 is connected to the secondhorizontal gate line G2, and a drain electrode of the eighth TFT T8 isconnected to the fourth vertical data line D4. A source electrode of theeighth TFT T8 is connected to the eighth pixel electrode PIX8 across thefirst vertical common voltage line COML1. The eighth TFT T8 is turned onin response to the second gate pulse applied to its gate electrodethrough the second vertical gate line VG2 and the second horizontal gateline G2. When the eighth TFT T8 is turned on, the data voltage of thesecond polarity supplied through the fourth vertical data line D4 issupplied to the eighth pixel electrode PIX8 through the eighth TFT T8.

The ninth and tenth pixels, which are horizontally adjacent to eachother on opposite sides of the first vertical gate line VG1 on a secondhorizontal line of the display panel PNL, are successively charged tothe data voltage of the second polarity supplied through the secondvertical data line D2. More specifically, the ninth pixel is charged tothe data voltage of the second polarity through the ninth TFT T9, andthen the tenth pixel is charged to the data voltage of the secondpolarity through the tenth TFT T10.

The ninth TFT T9 is formed at a crossing of the second vertical dataline D2 and the third horizontal gate line G3 and is connected to theninth pixel electrode PIX9. A gate electrode of the ninth TFT T9 isconnected to the third horizontal gate line G3, and a drain electrode ofthe ninth TFT T9 is connected to the second vertical data line D2. Asource electrode of the ninth TFT T9 is connected to the ninth pixelelectrode PIX9 across the first vertical gate line VG1. The ninth TFT T9is turned on in response to a third gate pulse applied to its gateelectrode through the third vertical gate line VG3 and the thirdhorizontal gate line G3. When the ninth TFT T9 is turned on, the datavoltage of the second polarity supplied through the second vertical dataline D2 is supplied to the ninth pixel electrode PIX9 through the ninthTFT T9. The tenth TFT T10 is formed at a crossing of the second verticaldata line D2 and the fourth horizontal gate line G4 and is connected tothe tenth pixel electrode PIX10. A gate electrode of the tenth TFT T10is connected to the fourth horizontal gate line G4, and a drainelectrode of the tenth TFT T10 is connected to the second vertical dataline D2. A source electrode of the tenth TFT T10 is connected to thetenth pixel electrode PIX10. The tenth TFT T10 is turned on in responseto a fourth gate pulse applied to its gate electrode through the fourthvertical gate line VG4 and the fourth horizontal gate line G4. When thetenth TFT T10 is turned on, the data voltage of the second polaritysupplied through the second vertical data line D2 is supplied to thetenth pixel electrode PIX10 through the tenth TFT T10.

The eleventh and twelfth pixels, which are horizontally adjacent to eachother on opposite sides of the third vertical gate line VG3 on thesecond horizontal line of the display panel PNL, are successivelycharged to the data voltage of the first polarity supplied through thethird vertical data line D3. More specifically, the twelfth pixel ischarged to the data voltage of the first polarity through the twelfthTFT T12, and then the eleventh pixel is charged to the data voltage ofthe first polarity through the eleventh TFT T11.

The eleventh TFT T11 is formed at a crossing of the third vertical dataline D3 and the fourth horizontal gate line G4 and is connected to theeleventh pixel electrode PIX11. A gate electrode of the eleventh TFT T11is connected to the fourth horizontal gate line G4, and a drainelectrode of the eleventh TFT T11 is connected to the third verticaldata line D3. A source electrode of the eleventh TFT T11 is connected tothe eleventh pixel electrode PIX11 across the third vertical gate lineVG3. The eleventh TFT T11 is turned on in response to the fourth gatepulse applied to its gate electrode through the fourth vertical gateline VG4 and the fourth horizontal gate line G4. When the eleventh TFTT11 is turned on, the data voltage of the first polarity suppliedthrough the third vertical data line D3 is supplied to the eleventhpixel electrode PIX11 through the eleventh TFT T11. The twelfth TFT T12is formed at a crossing of the third vertical data line D3 and the thirdhorizontal gate line G3 and is connected to the twelfth pixel electrodePIX12. A gate electrode of the twelfth TFT T12 is connected to the thirdhorizontal gate line G3, and a drain electrode of the twelfth TFT T12 isconnected to the third vertical data line D3. A source electrode of thetwelfth TFT T12 is connected to the twelfth pixel electrode PIX12. Thetwelfth TFT T12 is turned on in response to the third gate pulse appliedto its gate electrode through the third vertical gate line VG3 and thethird horizontal gate line G3. When the twelfth TFT T12 is turned on,the data voltage of the first polarity supplied through the thirdvertical data line D3 is supplied to the twelfth pixel electrode PIX12through the twelfth TFT T12.

The thirteenth and fourteenth pixels, which are horizontally adjacent toeach other on opposite sides of the fifth vertical gate line VG5 on thesecond horizontal line of the display panel PNL, are successivelycharged to the data voltage of the second polarity supplied through thefourth vertical data line D4. More specifically, the fourteenth pixel ischarged to the data voltage of the second polarity through thefourteenth TFT T14, and then the thirteenth pixel is charged to the datavoltage of the second polarity through the thirteenth TFT T13.

The thirteenth TFT T13 is formed at a crossing of the fourth verticaldata line D4 and the fourth horizontal gate line G4 and is connected tothe thirteenth pixel electrode PIX13. A gate electrode of the thirteenthTFT T13 is connected to the fourth horizontal gate line G4, and a drainelectrode of the thirteenth TFT T13 is connected to the fourth verticaldata line D4. A source electrode of the thirteenth TFT T13 is connectedto the thirteenth pixel electrode PIX13 across the fifth vertical gateline VG5. The thirteenth TFT T13 is turned on in response to the fourthgate pulse applied to its gate electrode through the fourth verticalgate line VG4 and the fourth horizontal gate line G4. When thethirteenth TFT T13 is turned on, the data voltage of the second polaritysupplied through the fourth vertical data line D4 is supplied to thethirteenth pixel electrode PIX13 through the thirteenth TFT T13. Thefourteenth TFT T14 is formed at a crossing of the fourth vertical dataline D4 and the third horizontal gate line G3 and is connected to thefourteenth pixel electrode PIX14. A gate electrode of the fourteenth TFTT14 is connected to the third horizontal gate line G3, and a drainelectrode of the fourteenth TFT T14 is connected to the fourth verticaldata line D4. A source electrode of the fourteenth TFT T14 is connectedto the fourteenth pixel electrode PIX14. The fourteenth TFT T14 isturned on in response to the third gate pulse applied to its gateelectrode through the third vertical gate line VG3 and the thirdhorizontal gate line G3. When the fourteenth TFT T14 is turned on, thedata voltage of the second polarity supplied through the fourth verticaldata line D4 is supplied to fourteenth pixel electrode PIX14 through thefourteenth TFT T14.

The fifteenth and sixteenth pixels, which are horizontally adjacent toeach other on opposite sides of the first vertical common voltage lineCOML1 on the second horizontal line of the display panel PNL, aresuccessively charged to the data voltage of the first polarity suppliedthrough the fifth vertical data line D5. More specifically, thefifteenth pixel is charged to the data voltage of the first polaritythrough the fifteenth TFT T15, and then the sixteenth pixel is chargedto the data voltage of the first polarity through the sixteenth TFT T16.

The fifteenth TFT T15 is formed at a crossing of the fifth vertical dataline D5 and the third horizontal gate line G3 and is connected to thefifteenth pixel electrode PIX15. A gate electrode of the fifteenth TFTT15 is connected to the third horizontal gate line G3, and a drainelectrode of the fifteenth TFT T15 is connected to the fifth verticaldata line D5. A source electrode of the fifteenth TFT T15 is connectedto the fifteenth pixel electrode PIX15 across the first vertical commonvoltage line COML1. The fifteenth TFT T15 is turned on in response tothe third gate pulse applied to its gate electrode through the thirdvertical gate line VG3 and the third horizontal gate line G3. When thefifteenth TFT T15 is turned on, the data voltage of the first polaritysupplied through the fifth vertical data line D5 is supplied to thefifteenth pixel electrode PIX15 through the fifteenth TFT T15. Thesixteenth TFT T16 is formed at a crossing of the fifth vertical dataline D5 and the fourth horizontal gate line G4 and is connected to thesixteenth pixel electrode PIX16. A gate electrode of the sixteenth TFTT16 is connected to the fourth horizontal gate line G4, and a drainelectrode of the sixteenth TFT T16 is connected to the fifth verticaldata line D5. A source electrode of the sixteenth TFT T16 is connectedto the sixteenth pixel electrode PIX16. The sixteenth TFT T16 is turnedon in response to the fourth gate pulse applied to its gate electrodethrough the fourth vertical gate line VG4 and the fourth horizontal gateline G4. When the sixteenth TFT T16 is turned on, the data voltage ofthe first polarity supplied through the fifth vertical data line D5 issupplied to the sixteenth pixel electrode PIX16 through the sixteenthTFT T16.

In the pixel structure shown in FIG. 4, a charge time of the datavoltage is further reduced, and a sum of a resistance length of thevertical gate line and a resistance length of the horizontal gate linefurther increases, compared to the general pixel structure. Therefore,RC of the pixel structure shown in FIG. 4 may increase, where R is aresistance and C is a capacitance. As shown in FIGS. 5 and 6, aconnection position between the vertical gate line and the horizontalgate line varies depending on a position of the display panel PNL, so asto reduce RC delay and to compensate for a loss of a charge amount ofthe data voltage in consideration of an increase in the RC. In FIGS. 5and 6, a dot portion at a crossing between the vertical gate line andthe horizontal gate line is a connection portion between the verticalgate line and the horizontal gate line through a contact hole. In a lefthalf part of the display panel PNL, the vertical gate lines VG1, VG3, .. . , and VGn-1 are connected to the odd-numbered horizontal gate linesG1, G3, . . . , and Gn-1. In a right half part of the display panel PNL,the vertical gate lines VG2, VG4, . . . , and VGn are connected to theeven-numbered horizontal gate lines G2, G4, . . . , and Gn. Connectionportions between the vertical gate lines VG1, VG2, . . . , and VGn andthe horizontal gate lines G1, G2, . . . , and Gn are positioned close tothe middle of the display panel PNL as the connection portions are faraway from the driver ICs DIC. Thus, as shown in FIG. 6, when theconnection portions between the vertical gate lines VG1, VG2, . . . ,and VGn and the horizontal gate lines G1, G2, . . . , and Gn areconnected to one another, the connection portions have a V-shape. Thegate driver ICs GIC start to apply the gate pulse to the first andsecond vertical gate lines VG1 and VG2 respectively positioned at theleft and right ends of the display panel PNL and shift the gate pulse tothe nth vertical gate line VGn positioned in the middle of the displaypanel PNL in application order of the vertical gate lines shown in FIG.6.

If a pixel positioned at a lower left end of the display panel PNLreceives the gate pulse through a connection portion formed at a lowerright end of the display panel PNL, the RC delay of the gate pulse mayincrease because the line passing through the connection portion has amaximum length. Hence, the charge amount of the pixel may decrease. Onthe other hand, in the embodiment of the invention, the pixel positionedat the lower left end of the display panel PNL receives the gate pulsethrough a connection portion formed in the lower middle of the displaypanel PNL, and thus a length of the line passing through the connectionportion decreases. Hence, the RC delay of the gate pulse relativelydecreases, and the charge amount of the pixel increases.

The IPS mode and the FFS mode have the advantage in being able toachieve a viewing angle. In the IPS mode, because the pixel electrodeand the common electrode are separated from each other on the samehorizontal plane, a horizontal electric field is formed between thepixel electrode and the common electrode. Further, in the IPS mode,because the horizontal electric field is not formed in a space occupiedby the pixel electrode and the common electrode, a non-driving area ofliquid crystals exists. Hence, there is a loss in an aperture ratio, aluminance, a contrast, etc. On the other hand, in the FFS mode, both thecommon electrode COM and the pixel electrode PXL are formed on the lowersubstrate of the display panel PNL. In this instance, the commonelectrode COM and the pixel electrode PXL form a stepped profile whileoverlapping each other. Thus, in the FFS mode, the common electrode COMand the pixel electrode PXL greatly increase a formation area of thehorizontal electric field in a pixel area using a fringe field. Hence,the aperture ratio, the luminance, and the contrast in the FFS mode maybe further improved than those in the IPS mode.

FIG. 7 is a plane view showing the TFT array of the FFS mode in theliquid crystal display according to the embodiment of the invention.FIG. 8 is a cross-sectional view taken along lines I-I, II-II, andIII-III of FIG. 7. FIGS. 7 and 8 show the TFT array of the FFS mode asan example. However, the liquid crystal display according to theembodiment of the invention may be implemented in any liquid crystalmode, and thus is not limited to the FFS mode.

As shown in FIGS. 7 and 8, gate metal patterns are formed on a substrateSUBS. The gate metal patterns include horizontal gate lines G1 to Gn,gate pads GPAD (refer to FIGS. 9A to 9G), and data pads DPAD (refer toFIGS. 9A to 9G). The gate pads GPAD are respectively connected tovertical gate lines VG1 to VGn through contact holes and arerespectively connected to output terminals of the gate driver ICs GIC.The gate pulse output from the gate driver ICs GIC are applied to thevertical gate lines VG1 to VGn and the horizontal gate lines G1 to Gnthrough the gate pads GPAD. The data pads DPAD are respectivelyconnected to vertical data lines D1 to Dm through the contact holes andare respectively connected to output terminals of the source driver ICsSIC. The data voltage output from the source driver ICs SIC are appliedto the vertical data lines D1 to Dm through the data pads DPAD.

A gate insulating layer GI is formed on the gate metal patterns, and asemiconductor active pattern is formed on the gate insulating layer GI.Source-drain metal patterns are formed on the semiconductor activepattern. The semiconductor active pattern and the source-drain metalpatterns are simultaneously patterned and are stacked in the same shape.The source-drain metal patterns include vertical data lines D3 and D4(refer to FIG. 8), vertical gate lines VG5 (refer to FIG. 8), andvertical common voltage lines COML (refer to FIG. 8).

A first passivation layer PAS1 is formed on the gate insulating layer GIso that it covers the source-drain metal patterns, and a thick organicprotection layer PAC is formed on the first passivation layer PAS1. Theorganic protection layer PAC may be formed of photo acryl. If thesource-drain metal pattern is shifted, a deviation may be generated ingate-source capacitances Cgs of the pixels. Thus, there may be adifference between gate-source capacitances Cgs of the left and rightpixels of the vertical common voltage line COML and between gate-sourcecapacitances Cgs of the left and right pixels of the vertical gate line.In this instance, because kickback voltages ΔVp of the horizontallyadjacent pixels are different from each other, there may be a differencein brightness of the horizontally adjacent pixels even if the same datavoltage is applied to the horizontally adjacent pixels. Because theorganic protection layer PAC has a low dielectric constant and is thick,the deviation between the gate-source capacitances Cgs of the pixels maybe reduced if the organic protection layer PAC is formed between thegate metal patterns and the pixel electrodes. The first passivationlayer PAS1 is formed by thinly forming an inorganic insulating layerformed of, for example, silicon nitride (SiNx). Because a leakagecurrent is generated when the organic protection layer PAC and thesemiconductor active pattern directly contact each other, the firstpassivation layer PAS1 is formed between the organic protection layerPAC and the semiconductor active pattern to thereby block the leakagecurrent.

Transparent electrode patterns are formed on the organic protectionlayer PAC. The transparent electrode patterns are formed of atransparent conductive material such as indium tin oxide (ITO) andinclude a common electrode COM(ITO) and a link pattern LINK(ITO). Thecommon voltage Vcom is supplied to the common electrode COM(ITO) throughthe vertical common voltage lines COML. The common electrode COM(ITO)passes through the organic protection layer PAC and the firstpassivation layer PAS1 and is connected to the vertical common voltageline COML through the contact hole exposing the vertical common voltageline COML. The common electrode COM(ITO) forms the fringe field alongwith pixel electrodes PIX(ITO). The link pattern LINK(ITO) is formed atthe same time as the common electrode COM(ITO), but is separated fromthe common electrode COM(ITO). The link pattern LINK(ITO) connects thevertical gate line to the horizontal gate line through a contact hole,which passes through the organic protection layer PAC and the firstpassivation layer PAS1 and exposes a vertical gate line VG3 (refer toFIG. 8), and through a contact hole, which passes through the organicprotection layer PAC, the first passivation layer PAS1, and the gateinsulating layer GI and exposes a horizontal gate line G3 (refer to FIG.8).

A second passivation layer PAS2 is formed on the transparent electrodepatterns, and the pixel electrodes PIX(ITO) are formed using transparentelectrode patterns thereon. The second passivation layer PAS2 is formedby thinly forming an inorganic insulating layer formed of, for example,silicon nitride (SiNx).

The TFT array of the FFS mode shown in FIGS. 7 and 8 may be formed using7-mask process illustrated in FIGS. 9A to 9G. FIGS. 9A to 9G arecross-sectional views sequentially illustrating each of stages in amethod for manufacturing the TFT array of the liquid crystal displayaccording to the embodiment of the invention.

As shown in FIG. 9A, a first mask process includes depositing a gatemetal layer GM on a substrate SUBS, performing a photolithographyprocess on the gate metal layer GM, and performing a wet etching processon a gate metal to pattern the gate metal layer GM. The gate metal maybe one metal of copper (Cu), aluminum (Al), aluminum neodymium (AlNd),and molybdenum (Mo) or a double metal of Cu/MoTi. The photolithographyprocess includes applying a photoresist on the gate metal layer GM,aligning a first photomask on the photoresist, and exposing anddeveloping the photoresist. The gate metal layer GM is etched, and thena remaining photoresist pattern is removed using a strip process. Gatemetal patterns made from the gate metal layer GM include horizontal gatelines G1 to Gn, gate pads GPAD, and data pads DPAD. A gate insulatinglayer GI is formed by depositing silicon nitride (SiNx) on the gatemetal patterns and the substrate SUBS.

As shown in FIG. 9B, a second mask process includes successivelydepositing amorphous silicon (a-Si) and a source-drain metal layer SDMon the gate insulating layer GI and performing a photolithographyprocess. A source-drain metal may be formed of one of molybdenum (Mo),aluminum neodymium (AlNd), chrome (Cr), and copper (Cu). Thephotolithography process includes applying a photoresist on thesource-drain metal layer SDM, aligning a second photomask, i.e., a halftone mask on the photoresist, and exposing and developing thephotoresist. In the photolithography process, an exposure amount of thephotoresist is partially non-uniform because of the half tone mask, andthus a stepped photoresist pattern is formed. The source-drain metal iswet-etched and amorphous silicon (a-Si) is dry-etched using the steppedphotoresist pattern formed through the photolithography process as amask to form source-drain metal patterns stacked on a semiconductoractive pattern ACT. The source-drain metal patterns include verticaldata lines, vertical gate lines, and vertical common voltage lines.Subsequently, an ashing process is performed on the photoresist patternto expose a semiconductor channel region of a TFT, and then thephotoresist pattern is dry-etched. Hence, an ohmic contact layer exposedin the semiconductor channel region of the TFT is removed.

As shown in FIG. 9C, a third mask process includes depositing siliconnitride (SiNx), applying photo acryl, and performing a photolithographyprocess. The photolithography process includes aligning a thirdphotomask on photo acryl and exposing and developing photo acryl. As aresult of the third mask process, a first passivation layer PAS1 and anorganic protection layer PAC are formed. The organic protection layerPAC has contact holes for exposing the first passivation layer PAS1.

As shown in FIG. 9D, a fourth mask process includes dry etching thefirst passivation layer PAS1 in a state where a fourth photomask isaligned on photo acryl, and removing a first passivation material etchedthrough a strip process. As a result of the fourth mask process, acontact hole, which passes through the organic protection layer PAC andthe first passivation layer PAS1 and exposes the vertical common voltageline COML, is formed.

As shown in FIG. 9E, a fifth mask process includes depositing atransparent conductive material such as indium tin oxide (ITO) on theorganic protection layer PAC and performing a photolithography process.The photolithography process includes applying a photoresist on indiumtin oxide, aligning a fifth photomask on the photoresist, and exposingand developing the photoresist. The fifth mask process further includeswet etching indium tin oxide using a photoresist pattern formed throughthe photolithography process and performing a strip process on indiumtin oxide. As a result, transparent electrode patterns such as a commonelectrode COM(ITO) and a link pattern LINK(ITO) are formed. The commonelectrode COM(ITO) is connected to the vertical common voltage line COMLthrough a contact hole passing through the organic protection layer PACand the first passivation layer PAS1.

As shown in FIG. 9F, a sixth mask process includes depositing siliconnitride (SiNx) on the transparent electrode patterns and the organicprotection layer PAC to form a second passivation layer PAS2 andperforming a photolithography process. The photolithography processincludes applying a photoresist on the second passivation layer PAS2,aligning a sixth photomask on the photoresist, and exposing anddeveloping the photoresist. The sixth mask process further includes dryetching the second passivation layer PAS2 using a photoresist patternformed through the photolithography process and performing a stripprocess on the second passivation layer PAS2. As a result, a portion ofthe second passivation layer PAS2 is removed, and thus the gate padGPAD, the data pad DPAD, and contact holes exposing source electrodes ofthe TFTs are formed.

As shown in FIG. 9G, a seventh mask process includes depositing atransparent conductive material such as indium tin oxide (ITO) on thesecond passivation layer PAS2 and performing a photolithography process.The photolithography process includes applying a photoresist on indiumtin oxide, aligning a seventh photomask on the photoresist, and exposingand developing the photoresist. The seventh mask process furtherincludes wet etching indium tin oxide using a photoresist pattern formedthrough the photolithography process and performing a strip process onindium tin oxide. As a result, transparent electrode patterns includingpixel electrodes PIX(ITO), pad upper electrodes, etc. are formed. Thepixel electrode PIX(ITO) is connected to the source electrode of the TFTthrough a contact hole passing through the second passivation layer PAS2and the organic protection layer PAC. The pad upper electrodes areconnected to gate metal patterns of the gate pad GPAD and the data padDPAD through contact holes passing through the second passivation layerPAS2, the organic protection layer PAC, the first passivation layerPAS1, and the gate insulating layer GI.

FIGS. 9A to 9G illustrate the 7-mask process. However, the method formanufacturing the liquid crystal display according to the embodiment ofthe invention is not limited thereto.

As described above, the embodiment of the invention supplies all of thesignals required to drive the display panel through the vertical linesincluding the vertical data lines, the vertical gate lines, and thevertical common voltage lines. As a result, the embodiment of theinvention may reduce the width of the bezel on the left, right, andlower sides of the display panel to about 1.0 mm or less. As shown inFIG. 11, one common voltage line COML2 and one ground line GNDL may beformed inside the bezel BZ. The common voltage line COML2 and the groundline GNDL may be formed using the gate metal pattern and thesource-drain metal pattern. Lines other than the common voltage lineCOML2 and the ground line GNDL are not formed inside the bezel BZ. InFIG. 11, the common voltage Vcom is supplied to the common voltage lineCOML2, and a ground level voltage, for example, zero volt may be appliedto the ground line GNDL. The common voltage line COML2 and the groundline GNDL are connected to one end and the other end of the verticaldata line through an electrostatic circuit (not shown) and are installedfor the prevention of static electricity. When static electricity isgenerated in the pixel array of the display panel PNL, the staticelectricity passes through the electrostatic circuit and is dischargedthrough the common voltage line COML2 and the ground line GNDL formed inthe bezel BZ. The common voltage line COML2 formed in the bezel BZ isconnected to the vertical common voltage line COML inside the pixelarray and supplies the common voltage Vcom to the common electrodes 2 ofthe pixels on the lower side of the pixel array, thereby supplying theuniform common voltage Vcom to the pixels.

As described above, the embodiment of the invention supplies all of thesignals required to drive the display panel through the vertical linesincluding the vertical data lines, the vertical gate lines, and thevertical common voltage lines, thereby reducing the width of the bezelon each of the left, right, and lower sides of the display panel toabout 1.0 mm or less.

The embodiment of the invention time-division supplies the data voltageto the adjacent pixels through one vertical data line, therebyminimizing the number of vertical lines. Further, because the polarityof the data voltage output from the source driver IC is maintained inthe same polarity during one frame period, the power consumption and theheat generation amount of the source driver IC may be minimized.

Furthermore, the liquid crystal display according to the embodiment ofthe invention positions the connection portion between the vertical gateline and the horizontal gate line close to the middle of the displaypanel as the connection portion is far away from the source driver IC,thereby reducing the deviation of the charge amount of the pixels.

Although embodiments have been described with reference to a number ofillustrative embodiments thereof, it should be understood that numerousother modifications and embodiments can be devised by those skilled inthe art that will fall within the scope of the principles of thisdisclosure. More particularly, various variations and modifications arepossible in the component parts and/or arrangements of the subjectcombination arrangement within the scope of the disclosure, the drawingsand the appended claims. In addition to variations and modifications inthe component parts and/or arrangements, alternative uses will also beapparent to those skilled in the art.

What is claimed is:
 1. A liquid crystal display comprising: a displaypanel including vertical lines, horizontal lines, and pixels; and adriver integrated circuit (IC) configured to supply a data voltage and agate pulse to the pixels through the vertical lines, wherein thevertical lines include vertical data lines to which the data voltage issupplied, vertical gate lines to which the gate pulse is supplied, andvertical common voltage lines to which a common voltage is supplied,wherein the horizontal lines include horizontal gate lines which areconnected to the vertical gate lines and receive the gate pulse throughthe vertical gate lines.
 2. The liquid crystal display of claim 1,wherein one vertical line is positioned between the horizontallyadjacent pixels of the display panel.
 3. The liquid crystal display ofclaim 2, wherein when the number of pixels positioned on one line of thedisplay panel is ‘m’, where m is a positive integer equal to or greaterthan 2, the number of vertical lines is ‘m’, wherein when the number ofvertical lines and the number of horizontal lines in the display panelare ‘m’ and ‘n’, respectively, where n is a positive integer equal to orgreater than 2, a resolution of a pixel array of the display panel is‘m*n/2’.
 4. The liquid crystal display of claim 2, wherein the driver ICincludes: a source driver IC configured to output the data voltage; anda gate driver IC configured to output the gate pulse, wherein both thesource driver IC and the gate driver IC are mounted on a chip-on film(COF).
 5. The liquid crystal display of claim 4, wherein the sourcedriver IC supplies the data voltage of a first polarity to theodd-numbered vertical data lines and supplies the data voltage of asecond polarity to the even-numbered vertical data lines during oneframe period, wherein the data voltage supplied to each of the verticaldata lines is maintained in one polarity during one frame period.
 6. Theliquid crystal display of claim 2, wherein connection portions betweenthe vertical gate lines and the horizontal gate lines are positionedclose to the middle of the display panel as the connection portions arefar away from the driver IC.
 7. The liquid crystal display of claim 6,wherein the connection portions between the vertical gate lines and thehorizontal gate lines have a V-shape in the display panel.
 8. The liquidcrystal display of claim 2, wherein the horizontal lines are formedusing gate metal patterns formed on a substrate of the display panel,wherein semiconductor patterns and source-drain metal patternspositioned on the gate metal patterns are stacked to form the verticallines, wherein a gate insulating layer is formed between the verticallines and the horizontal lines.
 9. The liquid crystal display of claim8, wherein a first passivation layer and an organic protection layer arestacked on the vertical lines and the gate insulating layer, wherein acommon electrode and a link pattern of the pixels formed of atransparent conductive material are formed on the organic protectionlayer, wherein a second passivation layer is formed on the commonelectrode and the link pattern, wherein pixel electrodes of the pixelsis formed on the second passivation layer, wherein the link patternconnects the vertical gate line to the horizontal gate line through acontact hole, which passes through the organic protection layer and thefirst passivation layer and exposes the vertical gate line, and acontact hole, which passes through the organic protection layer, thefirst passivation layer, and the gate insulating layer and exposes thehorizontal gate line.
 10. The liquid crystal display of claim 2, whereina common voltage line to which the common voltage is supplied, and aground line to which a ground level voltage is supplied, are formed in abezel area outside a formation area of a pixel array including thepixels in the display panel.
 11. The liquid crystal display of claim 10,wherein a width of the bezel area in the display panel is equal to orless than about 1.0 mm.
 12. A method for manufacturing a liquid crystaldisplay comprising: forming vertical lines and horizontal lines crossingthe vertical lines on a substrate and forming a plurality of pixels onthe substrate to manufacture a display panel; and connecting a driverintegrated circuit (IC), which supplies a data voltage and a gate pulseto the pixels through the vertical lines, to the display panel, whereinthe vertical lines include vertical data lines to which the data voltageis supplied, vertical gate lines to which the gate pulse is supplied,and vertical common voltage lines to which a common voltage is supplied,wherein the horizontal lines include horizontal gate lines which areconnected to the vertical gate lines and receive the gate pulse throughthe vertical gate lines.
 13. The method of claim 12, wherein onevertical line is positioned between the horizontally adjacent pixels ofthe display panel.
 14. The method of claim 13, wherein the manufacturingof the display panel further includes forming a common voltage line towhich the common voltage is supplied, and a ground line to which aground level voltage is supplied, in a bezel area outside a formationarea of a pixel array including the pixels.
 15. The method of claim 14,wherein a width of the bezel area in the display panel is equal to orless than about 1.0 mm.
 16. A method for manufacturing a liquid crystaldisplay including a display panel including vertical lines, horizontallines, and pixels and a driver integrated circuit (IC) supplying a datavoltage and a gate pulse to the pixels through the vertical lines, themethod comprising: forming the horizontal lines using gate metalpatterns formed on a substrate of the display panel; forming a gateinsulating layer on the substrate to cover the horizontal lines;stacking semiconductor patterns and source-drain metal patterns on thegate insulating layer to form the vertical lines; stacking a firstpassivation layer and an organic protection layer on the vertical linesand the gate insulating layer; forming a common electrode and a linkpattern of the pixels formed of a transparent conductive material on theorganic protection layer; forming a second passivation layer on thecommon electrode and the link pattern; and forming pixel electrodes ofthe pixels on the second passivation layer, wherein the vertical linesinclude vertical data lines to which the data voltage is supplied,vertical gate lines to which the gate pulse is supplied, and verticalcommon voltage lines to which a common voltage is supplied, wherein thehorizontal lines include horizontal gate lines which are connected tothe vertical gate lines and receive the gate pulse through the verticalgate lines.
 17. The method of claim 16, wherein one vertical line ispositioned between the horizontally adjacent pixels of the displaypanel.
 18. The method of claim 17, wherein the link pattern connects thevertical gate line to the horizontal gate line through a contact hole,which passes through the organic protection layer and the firstpassivation layer and exposes the vertical gate line, and a contacthole, which passes through the organic protection layer, the firstpassivation layer, and the gate insulating layer and exposes thehorizontal gate line.
 19. The method of claim 17, wherein when thenumber of pixels positioned on one line of the display panel is ‘m’,where m is a positive integer equal to or greater than 2, the number ofvertical lines is ‘m’, wherein when the number of vertical lines and thenumber of horizontal lines in the display panel are ‘m’ and ‘n’,respectively, where n is a positive integer equal to or greater than 2,a resolution of a pixel array of the display panel is ‘m*n/2’.
 20. Themethod of claim 17, wherein connection portions between the verticalgate lines and the horizontal gate lines are positioned close to themiddle of the display panel as the connection portions are far away fromthe driver IC.